Turkey has been on high alert in recent weeks after multiple terror attacks.
Three people were wounded by an explosion in Istanbul on Monday thought to have come from a package sent by courier to an electronics company in the Maltepe district of the city, broadcaster CNN Turk said.
Maltepe is a commercial and residential district on the Asian side of Istanbul. Turkey has been on high alert in recent weeks after a spate of attacks by ISIS, Kurdish and far-leftist terrorists.
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